Time-Dependent Plastic Flow in Metals and Alloys (Materials Research)

金属和合金中随时间变化的塑性流动（材料研究）

• 批准号: 8709772
• 负责人: William Nix
• 金额: $ 21.76万
• 依托单位: Stanford University
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1987
• 资助国家: 美国
• 起止时间: 1987-07-01 至 1989-12-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=8709772&HistoricalAwards=false
• 关键词: Time; Dependent; Plastic; Flow; Metals

An investigation of time-dependent deformation employing both computer modelling and experiments will be conducted on pure metals and the intermetallic compound, nickel aluminide (Ni 3AL). The research will include studies of the cell structures developed during deformation in terms of the elastic properties of individual dislocations and the development of a constitutive model for plastic flow, including flow kinetics, strain hardening, static and dynamic recovery. The overall aim of this work is to develop a model which is capable of describing the basic characteristics of both low and high temperature deformation.

将采用计算机建模和实验对纯金属和金属间化合物铝化镍 (Ni 3AL) 进行随时间变化的研究。 该研究将包括根据单个位错的弹性特性研究变形过程中形成的细胞结构，以及开发塑性流动本构模型，包括流动动力学、应变硬化、静态和动态恢复。 这项工作的总体目标是开发一个能够描述低温和高温变形基本特征的模型。